Gumming device for ribbon-cutting machines



J. H. HOFFMAN.

GUMMING DEVICE FOR RIBBON CUTTING MACHINES.

APPLICATION F lLED JULY 26. 1918.

1,415,562 Patented May'9, 1922.

4 SHEETS-SHEET 1.

J. H. HOFFMAN.

GUMMING DEVICE FORRIBBON' CUTTING MACHINES. APPLICATION FILED JULY 26. 1918;

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R F 3 A .fizrwz/W i i Jana/W 9 n g Q I jrliuawyfi y J. H. HOFFMAN.

GUMMING DEVICE FOR RI'BBON GUTTING' MACHINES.

APPLICATION FILED JULY 26, 1918. I

1, 11 5,562, I Patented May 9, 1922.

1. H. HOFFMAN.

GUMMING DEVICE FOR RIBBON CUTTING MACHINES. I

APPLICATION FIILED JULY26, 1918.

1 ,415,562, Patented May 9, 1922.

4 SHEETS-SHEET 4.

INVENTOR ef ln Wen 2:9 cfi ffmaln :BY iz'ei ATORNEY Ag Joan To all whom it may concern;

Be i-tjknown that I, JOHN HENRY HoFF- MAN, a citizen of the United States and a resident of the city of New York, county of Kings, and State of New Yorlnhaveinvented a certa n new and useful Improvement in a'Gumming. Device for Ribbon-Cutting hiathis character produce a rough edge upon the 'cutribbons which may. easily cause the ribbon to become frayed or fringed. To

prevent this, produce. by-,,m,ea-ns of the ofatheribbon becoming frayedeor fringed gumm-ingmattachment hereinafter described a layer of an adhesive substance ,on the edge ofthe newly cut ribbon during'the cutting process whereby the possibilities of the edge isavoided. I carry out. the abovementioned object. by the use of a gnmming apparatus which applies an adhesive substance to the cutter whereby the adhesive is applied to the edge of the ribbon while-the operation of cutting the, ribbon is performed: v

lVith this and other objects which may hereinafter appear in,viewj, I have devised the particular arrangement of parts hereinafter set forth, and as more particularly pointedout in the claims appended hereto. Reference is to be had. to the accompanying ,drawings forming a part, hereof in hf a I ,Figure 1 is a plan View of a portion of a ribbon cutting machine. to which my improved gumming mechanism is applied;

"Figure 2 isa. sectional view on-the line 2-2 ,of Figure 1, looking in the direction of the arrows; Y I Figure is a sectional view: on' the line 3+3 of. Figure 1, looking thedirection, of lthearrows; i

Figure 4;- is a sideelevation of one'of the cutting knives; c v Figure 5, is a plan view of the same;

Figure 6 is a plan view of a portion of a modified form of gumming mechanism;

7 o f Figure 6, looking, in the direction HENRY HOFFMAN, ornnw YORK, N. mass-xenon TO mm l'rIEnEMAnN sons, INC:, on new YoLaK, N. Y., A GORBORATIONOF NEW YORK.

Specification of Letters Patent,

Application filed J'uly 26, 191s. seria no, 246,859}- 'G-UMMING DEVICE FOR RIB-Bo N-oum'rmeciviacnxnns,

Patented my '9,- 1922.

of the arrows igure 8 is a sectional View of a ribbon-cuttingmachine to which my improved. gumming mechanism disclosed in Figures 6 and 7 has been applied; Throughout the various views of thedraw ing, similar reference characters designate sil i' lip r sa. a v I In the preferred embodiment ofinvention as illustrated in the accompanying drawng's, 1 indicates the frame. of the machine to which my invention, is applied; The

machine which I have shown herein is ,a well known form of ribbon cutting machine, and

it is not essential that this particular form of ma hine be used, asm'y im'provedgummin'g apparatus may be read ly andnex ped-iently appliedto. anyiof the known forms ,1

of ribbon cutting machine in use at the pres ont,t ime. r 1 Mounted on the frameiof themachine isv a roller 2 which is journ aled :in suitable ,l' eari-ngs'BQ, This-roller 2 is utilized to hold the piece goods'or fabric'8 which isadapted to be cut into; ribbons, and the fabric is unrolled from'this roller over I rodsA wand '5 which areniouuted in the frame and'from thence over a roller 6 mounted injbearings I Ton the frame. From the rollerfi the material, 8 passes beneath a rod 9; over a roller 10A around a -roll er or cylinder 11, and' thence to a splitroller 12 which holds the end of thefabric andupon this .splitroller lZ the ribbonsare vwound after they have been cut by the rotary cutters orknives. 15. The knives 15 are shown in detail inFigures 4 and 5, and are of the well known form used for cutting ribbons which comprises a-plate 14,, in one end of which is rotatably mounted, the revolving cutter 15 and from the other end ,of which 1 extends" a; leaf spring 16 which projects beneath and presses"upward- 1y against a portion ofthe frame of the ma chine .to produce the proper pressure of the which the: fabric passes.

set screws 19 andthisjcross memberis held on a shaft j20 on thenend of an arm 21 ,afiixed on a shaft 22' On theend of the Figure 7, is .a sectional view on the line shaft. 20 is a lever :23 and amoveinent of rotary cutter 15 against the roller 11 about Eaclrof'these knives is held abifacket. T l'i-adiustably fixed ,on a cross member 18 too this lever causes the'knives to ascendso that they bear against the roller 11. The shaft 20 is also provided with a cam surface 23 so that a rotation of the shaft 20 causes this cam surface to move a pin 24 on a yoke 25, which causes the roller 10 heretofore mentioned, which is on the end of one of the arms of this yoke. to ascend and bear against the roller 11 and also against another roller 26 to hold the fabric to be out, taut, while the machine is in operation and the cutting of the fabric is taking place. The yokes are each mounted on a stud 26 which projects from each side of the frame. The rollers 11 and 26 are provided with gears 27 and 28 which mesh and the roller 11 is provided with an outside gear 29 which meshes with another gear 30 on the main shaft of the machine. The main shaft is provided with a drum 31 which is driven by a belt 32 extending from any suitable source of power.

In the modification of my invention as shown in Figures 1, 2 and 3, the gumming device comprises a trough 33 which consists of a bottom container 34 within which fits the upper gum container 35. At each end of the machine the lower trough is supported in a bracket 36 which is provided with downwardly depending projections 37 which move in brackets 38. Pivoted in each one of these brackets 38 on a pin 39 is a lever 40. Several of the projections 37 on the trough supporting bracket 36 rest upon the lever 40 adjacent one of its ends. A weight 41 depends from the opposite end of the lever 40 and causes the trough to be held with its gumming pad, hereinafter to be referred to, held in contact with the knives so that they receive the gum therefrom.

The lower trough 34 contains water 43, and beneath the trough is a suitable burner 42 which heats the water 43 therein. The upper trough contains the gum, and this gum is by reason of the heated water in the lower trough kept in its proper consistency. The gum 44 in the upper trough 35 passes through a screen 46 to the pad 47 upon which the rotary cutters 15 rest. The pad 47 is made of a yielding absorbent ma terial such as a strip of heavy felt or the like.

From the foregoing the operation of my improved machine will be readily understood. The fabric to be cut into ribbons extends about the rods and rollers heretofore mentioned. When this material reaches and winds about the roller 11 the cutters 15 press against that roller 11 and the fabric or material which is interposed between the rotary cutters 15 and the roller is cut into the ribbons. These cutters are adjustable as heretofore mentioned upon the cross member 18 so that the ribbons can be cut in anydesired widths. While the rotary cutters 15 are rotating they are bearing against the gumming pads 47, these pads being pressed upwardly against the cutters by the springs 48 in the upper trough and the pads having absorbed an amount of the gum in this upper trough, they supply a uniform amount of gum to the edges of the rotary cutters 15 so that while these cutters are performing the operation of cutting the material into ribbons, they are likewise applying a line of gum at the edges thereof so that loose strands of the fabric produced by the cutting operation are prevented from becoming frayed or fringed.

In the modification of my invention as shown in Figures 6 and 7 in the place of the gumming pads 47, I have utilized a roller 49 preferably made of soft rubber. This roller extends substantially the length of the trough and has its ends mounted in bearings 50 in the ends of the upper trough 51. The lower trough 52 is in all respects similar to the lower trough 34 heretofore referred to except that'I have provided it with a strengthening rib 53 extending longitude nally of the trough as shown in Figures 6 and 7, upon which the upper trough 51 rests.

rotary cutters, rotary means for applying gum thereto, a trough from which said a rotary gum applying means receives gum, and means for raising said trough.

2. In a ribbon cutting apparatus or the like. the combination with a circular rotary cutter. means for applying gum to the edge of said cutter comprising a roller beneath the cutter, a gum-containing trough into which aid roller dips and means for elevating said trough to the cutter.

3. In a ribbon cutting apparatusor the like, the combination with a cutter, means for applying gum to said cutter, a gum-containing trough from which the gum is received by the gum-applying means, brackets for holding said trough and means for raising said brackets and the trough carried thereby.

4. In a ribbon cutting apparatus or'the like. the combination with a rotary cutter, means for applying gum to said cutter, a trough from which gum is received by the gum-applying means, brackets in which said trough i mounted and levers for elevating said brackets.

5. In a ribbon cutting apparatus or the like. a rotary cutter, means for supplying gum to the edge of said cutter, brackets in which said gum-supplying means is mounted, levers for elevating said brackets and means for engaging said levers to cause the same to hold the gum-supplying means in an elevated position.

6. In a ribbon cutting apparatus or the like, a rotary cutter, means for supplying gum to the same, brackets in which said gum-supplying means is mounted, levers for elevating said brackets and weights for engaging said levers to cause the same to hold the gum-supplying means in an elevated position.

7. In a ribbon cutting apparatus or the like, a rotary cutter, means for supplying gum to the same, brackets in which said gum-supplying means is mounted, projections on said brackets, ivoted levers engaging said projection and means for causing said levers to hold the gum-supplying means in position to supply gum to the'cutter.

8. In a ribbon cutting apparatus or the like the combination With a plurality of rotary cutters, a gum-containing trough, a roller mounted in said trough, a support for said trough, and means including levers for elevating said trough to cause the roller to be held in yielding contact with the cutters. I

'9. In a ribbon cutting'apparatus orthe like, the combination with a cutter, a gumcontaining trough, rotatable means mounted in said trough, brackets for supporting'the trough and means for elevating the brackets and trough.

Signed at the clty, county and State of New York, this 28d day of July, 1918.

JOHN HENRY HOFFMAN; f I i 

